# 骨格診断 vs うちの子 絵日記

The clearest difference is in-app purchases: 骨格診断 at none against うちの子 絵日記's 1. うちの子 絵日記's advantage is update cadence (daily vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. うちの子 絵日記 sells 1 one-off in-app purchase. 骨格診断 asks for nothing beyond the download.

骨格診断 ships an update weekly, うちの子 絵日記 daily. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | 骨格診断 | うちの子 絵日記 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Daily** |
| Size | 5 MB | 69 MB |
| Requires iOS | 17.4 | **16.4** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Takumi Yoshikoshi](https://appshunter.io/developer/1655689141) | [株式会社ふふ](https://appshunter.io/developer/6773547600) |

## What reviewers say

### 骨格診断

[App page](https://appshunter.io/ios/app/id6503636675)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### うちの子 絵日記

[App page](https://appshunter.io/ios/app/id6784056854)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PDFアルバム保存 | $2.99 | one-time |


## Frequently asked questions

### Is 骨格診断 free?

骨格診断 is free to download, with no in-app purchases.

### Is うちの子 絵日記 free?

うちの子 絵日記 is free to download, with in-app purchases available.

### Do 骨格診断 or うちの子 絵日記 have ads?

Neither 骨格診断 nor うちの子 絵日記 shows ads.

### Which is updated more often, 骨格診断 or うちの子 絵日記?

骨格診断 ships an update weekly, and うちの子 絵日記 daily. Most recently, 骨格診断 was updated on November 4, 2026 and うちの子 絵日記 on November 5, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*